/* ============================================================
   评论系统样式 — Material Design 3 风格
   与 Haprial 博客主题完全融合
   ============================================================ */

/* ── 评论区容器 ── */
.comment-section {
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--outline-variant);
}
.comment-section:empty { display: none; }

/* ── 标题 ── */
.cs-header {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin-bottom: 20px;
}
.cs-header h3 {
  font-family: 'Noto Sans SC', 'PingFang SC', sans-serif;
  font-size: 18px;
  font-weight: 600;
  color: var(--on-surface);
  margin: 0;
}
.cs-count {
  font-family: 'Noto Sans SC', 'PingFang SC', sans-serif;
  font-size: 13px;
  color: var(--outline);
  font-weight: 400;
}

/* ── 评论表单 ── */
.cs-form {
  margin-bottom: 24px;
  padding: 0;
  background: none;
  border: none;
  border-radius: 0;
}

/* 回复指示器 */
.cs-reply-indicator {
  display: none;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
  padding: 6px 8px 6px 14px;
  background: var(--primary-container);
  color: var(--on-primary-container);
  border-radius: var(--shape-m);
  font-family: 'Noto Sans SC', 'PingFang SC', sans-serif;
  font-size: 13px;
}
.cs-reply-indicator.visible { display: flex; }
.cs-reply-indicator strong { font-weight: 600; }
.cs-cr {
  width: 32px;
  height: 32px;
  border-radius: var(--shape-full);
  border: none;
  background: none;
  color: var(--on-primary-container);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-left: auto;
  flex-shrink: 0;
  transition: background 150ms;
}
.cs-cr:hover { background: rgba(0,0,0,.08); }
[data-theme="dark"] .cs-cr:hover { background: rgba(255,255,255,.08); }
.cs-cr svg {
  width: 18px;
  height: 18px;
  stroke: currentColor;
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* 输入框行 */
.cs-form-row {
  display: flex;
  gap: 0;
  margin-bottom: 0;
}
.cs-form input[type="text"],
.cs-form input[type="email"],
.cs-form input[type="url"] {
  flex: 1;
  min-width: 0;
  height: 42px;
  padding: 8px 0;
  border: none;
  border-bottom: 1px solid var(--outline-variant);
  border-radius: 0;
  background: none;
  color: var(--on-surface);
  font-family: 'Noto Sans SC', 'PingFang SC', sans-serif;
  font-size: 14px;
  letter-spacing: .01em;
  transition: border-color 200ms;
}
.cs-form input:focus {
  outline: none;
  border-bottom-color: var(--on-surface);
}
.cs-form input::placeholder {
  color: var(--outline);
  font-size: 13px;
  letter-spacing: 0;
}
/* 竖分隔符 — 电脑端 */
.cs-input-mid,
.cs-input-last {
  border-left: 1px solid var(--outline-variant);
  padding-left: 12px;
}

/* 文本域 */
.cs-textarea-wrap {
  position: relative;
}
.cs-form textarea {
  width: 100%;
  min-height: 100px;
  padding: 10px 0;
  border: none;
  border-bottom: 1px solid var(--outline-variant);
  border-radius: 0;
  background: none;
  color: var(--on-surface);
  font-family: 'Noto Sans SC', 'PingFang SC', sans-serif;
  font-size: 14px;
  line-height: 1.75;
  letter-spacing: .01em;
  resize: vertical;
  transition: border-color 200ms;
  scrollbar-width: thin;
  scrollbar-color: var(--outline-variant) transparent;
}
.cs-form textarea:focus {
  outline: none;
  border-bottom-color: var(--on-surface);
}
.cs-form textarea::placeholder {
  color: var(--outline);
  font-size: 13px;
  letter-spacing: 0;
}
.cs-form textarea::-webkit-scrollbar {
  width: 4px;
}
.cs-form textarea::-webkit-scrollbar-thumb {
  background: var(--outline-variant);
  border-radius: 2px;
}
.cs-form textarea::-webkit-scrollbar-track {
  background: transparent;
}

/* 按钮组 — 下划线下方，右对齐 */
.cs-btn-group {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: 8px;
  padding-top: 12px;
}

/* 放弃按钮 — MD3 Text Button */
.cs-discard {
  height: 38px;
  padding: 0 18px;
  border: none;
  border-radius: var(--shape-full);
  background: none;
  color: var(--primary);
  font-family: 'Noto Sans SC', 'PingFang SC', sans-serif;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: background 200ms cubic-bezier(.4,0,.2,1);
}
.cs-discard:hover {
  background: var(--primary-container);
}

/* 提交按钮 — MD3 Filled Button */
.cs-submit {
  height: 38px;
  padding: 0 24px;
  border: none;
  border-radius: var(--shape-full);
  background: var(--primary);
  color: var(--on-primary);
  font-family: 'Noto Sans SC', 'PingFang SC', sans-serif;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  box-shadow: var(--e1);
  transition: box-shadow 250ms cubic-bezier(.4,0,.2,1), transform 100ms cubic-bezier(.4,0,.2,1), opacity 200ms;
  position: relative;
  overflow: hidden;
}
.cs-submit:hover {
  box-shadow: var(--e2);
}
.cs-submit:active {
  transform: scale(.97);
  box-shadow: none;
}
.cs-submit:disabled {
  opacity: .5;
  cursor: not-allowed;
  box-shadow: none;
}

/* ── 评论列表 ── */
.cs-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

/* ── 单条评论 ── */
.cs-item {
  padding: 16px 0;
  border-bottom: 1px solid var(--outline-variant);
}
.cs-item:last-child { border-bottom: none; }

.cs-item-main {
  display: flex;
  gap: 12px;
}

/* 头像 */
.cs-avatar {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--primary-container);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}
.cs-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.cs-avatar-initial {
  font-family: 'Cormorant Garamond', Georgia, serif;
  font-size: 16px;
  font-weight: 400;
  color: var(--on-primary-container);
}

/* 内容区 */
.cs-body {
  flex: 1;
  min-width: 0;
}

.cs-meta {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 4px;
  flex-wrap: nowrap;
  overflow: hidden;
}
.cs-nickname {
  font-family: 'Noto Sans SC', 'PingFang SC', sans-serif;
  font-size: 14px;
  font-weight: 600;
  color: var(--on-surface);
}
.cs-nickname a {
  color: inherit;
  text-decoration: none;
}
.cs-nickname a:hover {
  color: var(--primary);
}
.cs-time {
  font-family: 'Noto Sans SC', 'PingFang SC', sans-serif;
  font-size: 12px;
  color: var(--outline);
}
.cs-edited {
  font-family: 'Noto Sans SC', 'PingFang SC', sans-serif;
  font-size: 11px;
  color: var(--outline);
  font-style: italic;
}

/* 评论正文 */
.cs-content {
  font-family: 'Noto Sans SC', 'PingFang SC', sans-serif;
  font-size: 14px;
  line-height: 1.75;
  color: var(--on-surface-variant);
  word-wrap: break-word;
  overflow-wrap: break-word;
}
.cs-content p { margin: 0 0 8px; }
.cs-content p:last-child { margin-bottom: 0; }
.cs-content code {
  font-family: 'JetBrains Mono', 'SF Mono', monospace;
  font-size: .85em;
  background: var(--surface-container-high);
  color: var(--primary);
  padding: 2px 6px;
  border-radius: var(--shape-xs);
}
.cs-content pre {
  background: var(--surface-container);
  padding: 12px;
  border-radius: var(--shape-s);
  overflow-x: auto;
  margin: 8px 0;
}
.cs-content pre code {
  padding: 0;
  background: none;
}
.cs-content a {
  color: var(--primary);
  text-decoration: none;
  border-bottom: 1px solid var(--primary-container);
  transition: border-color 200ms;
}
.cs-content a:hover {
  border-bottom-color: var(--primary);
}
.cs-content blockquote {
  border-left: 3px solid var(--primary);
  background: var(--surface-container);
  padding: 8px 12px;
  margin: 8px 0;
  border-radius: 0 var(--shape-s) var(--shape-s) 0;
}
.cs-content blockquote p {
  margin: 0;
  color: var(--on-surface-variant);
}

/* 长评论折叠 */
.cs-content.cs-long {
  max-height: 160px;
  overflow: hidden;
  position: relative;
}
.cs-content.cs-long::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 48px;
  background: linear-gradient(transparent, var(--surface-container-lowest));
  pointer-events: none;
}
.cs-content.cs-expanded {
  max-height: none;
}
.cs-content.cs-expanded::after {
  display: none;
}
.cs-expand-btn {
  display: inline-block;
  padding: 4px 0;
  border: none;
  background: none;
  color: var(--primary);
  font-family: 'Noto Sans SC', 'PingFang SC', sans-serif;
  font-size: 13px;
  cursor: pointer;
  margin-bottom: 4px;
}
.cs-expand-btn:hover {
  text-decoration: underline;
}

/* Markdown 样式 */
.cs-content h2 { font-size: 16px; font-weight: 600; margin: 12px 0 6px; color: var(--on-surface); }
.cs-content h3 { font-size: 15px; font-weight: 600; margin: 10px 0 4px; color: var(--on-surface); }
.cs-content strong { font-weight: 600; color: var(--on-surface); }
.cs-content em { font-style: italic; }
.cs-content del { color: var(--outline); text-decoration: line-through; }
.cs-content hr { border: none; height: 1px; background: var(--outline-variant); margin: 12px 0; }
.cs-content ul { margin: 6px 0; padding-left: 20px; }
.cs-content li { margin-bottom: 2px; }
.cs-content img { max-width: 100%; border-radius: var(--shape-s); margin: 6px 0; }

/* ── 操作栏 ── */
.cs-actions {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-top: 6px;
}
.cs-action {
  background: none;
  border: none;
  padding: 4px 8px;
  font-family: 'Noto Sans SC', 'PingFang SC', sans-serif;
  font-size: 12px;
  color: var(--outline);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 4px;
  border-radius: var(--shape-full);
  transition: color 150ms, background 150ms;
}
.cs-action:hover {
  color: var(--on-surface-variant);
  background: var(--surface-container-high);
}
.cs-action svg {
  width: 14px;
  height: 14px;
  stroke: currentColor;
  fill: none;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.cs-action.liked {
  color: var(--primary);
}
.cs-action.liked svg {
  fill: var(--primary);
}

/* ── 嵌套回复 ── */
.cs-replies {
  margin-left: 48px;
  padding-left: 14px;
  border-left: 2px solid var(--outline-variant);
  list-style: none;
}
.cs-replies .cs-item {
  padding: 12px 0;
}
.cs-replies .cs-avatar {
  width: 28px;
  height: 28px;
}
.cs-replies .cs-avatar-initial {
  font-size: 13px;
}

/* ── 状态提示 ── */
.cs-pending-notice {
  padding: 10px 14px;
  background: var(--primary-container);
  color: var(--on-primary-container);
  border-radius: var(--shape-s);
  font-family: 'Noto Sans SC', 'PingFang SC', sans-serif;
  font-size: 13px;
  margin-bottom: 16px;
}

/* ── 加载更多 ── */
.cs-load-more {
  display: block;
  width: 100%;
  padding: 12px;
  margin-top: 16px;
  border: 1px solid var(--outline-variant);
  border-radius: var(--shape-full);
  background: none;
  color: var(--on-surface-variant);
  font-family: 'Noto Sans SC', 'PingFang SC', sans-serif;
  font-size: 13px;
  cursor: pointer;
  transition: border-color 200ms, background 200ms, transform 150ms;
  position: relative;
  overflow: hidden;
}
.cs-load-more:hover {
  border-color: var(--primary);
  background: var(--surface-container-low);
  transform: translateY(-1px);
}

/* ── 博主标识 ── */
.cs-admin-link {
  display: inline-block;
  margin-top: 8px;
  font-family: 'Noto Sans SC', 'PingFang SC', sans-serif;
  font-size: 11px;
  color: var(--outline);
  text-decoration: none;
  cursor: pointer;
}
.cs-admin-link:hover {
  color: var(--primary);
}

.cs-badge {
  display: inline-block;
  padding: 1px 6px;
  border-radius: 4px;
  background: var(--primary);
  color: var(--on-primary);
  font-family: 'Noto Sans SC', 'PingFang SC', sans-serif;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: .04em;
  line-height: 1.6;
  vertical-align: middle;
  margin-left: 4px;
}
.cs-load-more:active {
  transform: scale(.98);
}

/* ── 空状态 ── */
.cs-empty {
  text-align: center;
  padding: 32px 16px;
  color: var(--outline);
  font-family: 'Noto Sans SC', 'PingFang SC', sans-serif;
  font-size: 14px;
}

/* ── 加载状态 ── */
.cs-loading {
  text-align: center;
  padding: 32px;
  color: var(--outline);
  font-family: 'Noto Sans SC', 'PingFang SC', sans-serif;
  font-size: 13px;
}
.cs-loading::after {
  content: '';
  display: inline-block;
  width: 16px;
  height: 16px;
  border: 2px solid var(--outline-variant);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: csSpin .6s linear infinite;
  margin-left: 8px;
  vertical-align: middle;
}
@keyframes csSpin { to { transform: rotate(360deg); } }

/* ── Toast 提示 ── */
.cs-toast {
  position: fixed;
  bottom: 80px;
  left: 50%;
  transform: translateX(-50%) translateY(60px);
  padding: 10px 20px;
  background: var(--on-surface);
  color: var(--surface);
  border-radius: var(--shape-s);
  font-family: 'Noto Sans SC', 'PingFang SC', sans-serif;
  font-size: 13px;
  z-index: 9999;
  opacity: 0;
  transition: transform 250ms cubic-bezier(0,0,.2,1), opacity 250ms;
  pointer-events: none;
  box-shadow: var(--e3);
}
.cs-toast.visible {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}

/* ── 响应式 ── */
@media (max-width: 768px) {
  .cs-form-row {
    flex-direction: column;
    gap: 0;
  }
  .cs-form input[type="text"],
  .cs-form input[type="email"],
  .cs-form input[type="url"] {
    font-size: 16px;
    height: 44px;
  }
  .cs-input-mid,
  .cs-input-last {
    border-left: none;
    padding-left: 0;
  }
  .cs-form textarea {
    font-size: 16px;
  }
  .cs-replies {
    margin-left: 24px;
    padding-left: 10px;
  }
  .cs-meta {
    gap: 4px;
  }
}

/* ── 减少动画 ── */
@media (prefers-reduced-motion: reduce) {
  .cs-item { animation: none; }
  .cs-toast { transition: none; }
  .cs-loading::after { animation: none; }
}